Describe the two possible positions of the earth moon and sun during a springtide

the answer to your question is b

unicellular organisms, like bacteria, are able to perform all life functions within one single cell. multicellular organisms need many different types of cells to carry out the same life processes. each of these special types of cells has a different structure that it perform a specific function.

idk what the options are but

these is a strong electrostatic attraction between the ions hence a lot of energy is needed to overcome this attraction

this is why the boiling points are so high

if you add everything up correctly you should get 69 i got this because 50 plus 19 is it